Universal portable sawing-machine.



PATBNTBD JULY 3, 1906.

A. LAUBER.

UNIVERSAL PDRTAB'LE SAWING MAGHINE. .nrmanmskrgm 30.13.1905.

"" 2 SHEETS-SHEET y1.

Mmmm JULY a, 1906;

UNI.

INVENTOR l fiorition to than shown inliigs. l and 2.

Specification of Letters Parent.

fssentec Jul 3, 1906.

Application iileii Decaan-.ber 13. L90?` Serial llo. QLSE.

fr!! whom, :fil may 3o/invern:

iiy known inet l, ALBERT LAURE. :i oi Lis zen of the United en York,have improvement in Universal Portable Son/inglincliines or which Ehefollowing is n specilioetion. o v

hij present invention relzites to fin. iniproved unive` "ablesawing-moaning :ind hns VFor its o` ,Jer/ 2:4 7l? ltiouhirly adr-inreduse in onl'iing berths 'have lier; vtin ouildingzm sie ilisCniing ofpipo or olectrionrirc als, but which niey be used for vsrions ourposesinoidenisl to the Work of oarei 1hr-rin zi building during the coursesation or in s nforl-zsliop.

peni :n e oi' lts e Ano he oliieot ol' liie inimniion is'io proside sniszhine czilonlilo of suini' :ind rend) mijustnieni oi the mw olii uinf freine to rullini: ine sew for ouiiing dill ,nt depilis for devicesfor holding lle iframe in its i 'Y posion. I i lurher object of theinvention is to pron e an ziutonnifbif; fssrl to gradnnlljf feed e ser;against; iii" morir, glie sold sntonjmtir n@ oper l by andsinniltnneonsljj. 'operation of the driving-shaft for ille Y, it ltifoso iiriei'ly-.staed objects in View iii@ inifoniion connnisesserignin details of con L`V`'friction and peculiar ooinhiinition andarrrangelnent of parts, 4will be fully described in the following,rspecification and point-ed o n i in the ola-inns, reference being lin-dto ille drow is, in n'liioh--H igil l n perspeorive View of nrwy manchino as used noon joists :iltor the vioists have been senin nbuilding'. the joiss bring shoonin li lines Fis. is o. seolioinilelevation h i ln thisview the drive-sprooke..

A isoroelmi removed, their. sliniis own in section, :find ono ol blieenubrackets 1 f i i ol' the onse menig shown in section. liigf 5 is sdetail sectional View drown on the h ne 3 3 0i Fig. e, the branko@ beingshown in ai reverse i Fig. '1l-'ih detail lonvirndinni Sectio :il Viewof the l? machine: l Fig, 5 is s ilenn nersneotivo View ,-i lle slidingtraine. 6 is a detail por, Speoti View of the :javi-ng fr ironie-nudlng. is i; dei-ail vie/wei? tlie'ieeding device, the various o o-rigsbeing detached.

y n he drawings, A designates the base of the nnioiiino. oonslsting ofthe ond brziokets B Sintes residing zit New .wv Lsnqnvimsiyfin ine{tonni} of non or r nnuninr o.

invented :i ,new and useful to provide n device ihnl niirnhir rniissection and lio-ve their ends l niinaiting in split sleeves B, oner sideof each ,i ofve lnwing :i rio B2, which is designed to i upon The joistswhen the machine is in position. Thoso sleeves nro designed to rei:eivennd lion! the ends of the 'mils C, which l :ire 'lirnily clampedwithin the sleeves by i holt-s B4, operatingr through oars B",- pri i'Jeciing from the sleeve, sind intending from l (lie. vertical p1 rtio1isol the brackets are oeni mn extensions l, euch lmving n threaded sloeveB7, in which rn'iornios n, thumb-screw that is designed Lo engngo theside of tho joist-s lio Chinn) the hnso firmly in position, and when the:machine is used upon :i bench l profido holts B, which operato throughthreaded apertures in the horizontal portions of the lnziokots, so that,tho linso nniy be elevated und fnlinsied to lie perioctly Non.

Slidnl ly retained upon the rails is e freine l), consisting oi' sidoportions D" D, snlistnntinliY shaped, sind side portions being innoed21nd heid together hy :i cross bolt or har D, which is secured it erichend to horizontal members D3' i" the side portions. The lower ends ofthe-obliquo portions of the ironie Leri'ninnfo in inliulnr sleeves D4,through which the rails/'C pass, and the :ipex'es of the side portionsValso terminato in tubulin' sleeves or bearings L57 in which is journaledn power-siniiii.y E, that extends slightly beyond i erich sido ol itsbearings sind has iixedly se` l cured upon one ond 'n drive-sprocket F.l liiountod upon the extended ends of the l i l power shalt` is a`swinging' 'sunwrorrying 5 irznne G, oonsisting or' the arins G G",wliiolr l; nro connected fidjnoenin their outer ends by cross holt orinn' G2. 'llao inner ends of the arms are formed with sleeves l, throughn'liioh the pmvoiwshuft passes, and their outer' ends will sleeves G, inwhich journzild :L

ohnnped upon one end; anni-ii sprocket GS upon itsopiiosito el cent thesleeves l)4. The thumb-screws,

IDG

' especially desirable when the machine is be Ward movement-'ortheteeding of the saw stru -eeedingly the ioists -joists the 'serve toclamp the swinging traine to the slidtar as dehase, which operate thelever-arm to throw either one of has been securely positioned upon theframe is elethesaw will cut into'the joists The slidingT traine is l i lhar projects slie'htly saw may he rapidly revolved, and hy movingl thesliding traine 'along n'ioved into engagement vwith the other rioists tothe end oi' the base, when the joists are rapidly cut. After the4ioistsjto the end ol the railsthe saw is the rails have been cut the.clamping-screwsl -l are nnscrewed sutiieiently to release the swingingttraine, which is then swung over to the oppositeI jnsted.- rllien hyrevolving the saw and moving the traine toward the liist joist, or thatupon which thebraeliet rests, it is rapidly eut. It will thus bel seenthat this operation is eX- being ii'iade in perfect aiinenient, one cuthas'been iiiwde in all the saw-shaft is adjusted in its` hearsiiw willhe in position to cut' inf-rs, so that the parallel slots to those firstiiiade, when the simple and insures the eut in all i .is provided with aseries of apertures the clutch-shoes into engagement with t-lie rail, lprovide a handle-bar M, which is plvn otally held upon the saine boltsthat secure the shoes to lthe ltvt\i-ii,iiu The said handle.-

beyond the tn-l sleeve D ol' the iraiiie'l and has its elf: ends lientto provide tlniiiili-liandles d. The central vertical portion of theleverairn. which register with apertures in the oscillating; arin and ispivolally connected to the oscillating :trui by iiieaiis of a boltlfhwhich maj.' he passed through 'any one set ol' regi:deringrapertures.

i that by changing the pivotal point oi the le,4

side oi the sliding traine and ad-A 'i machine niay he removedandadjusted iii l position upon the. grooves orcliannels are to he made.understood that all er the piirallel'euts have been inade in the ioiststhe wood between the cuts is chiseled out to produce the channel.

scribed[provide an autoiii-atic feed for nieving the sliding l'raniealong the rails, which is ing operated by an apprentice or inexperiencedpersons or when Working' upon' old material in which there is likely tobe liidden nails or other toreign ohiects that would iii- ]ure thesaw-blade, and to control the tor- 'that'it may he qnioklylstopped. Toineet these'requirements, l -provide a iced, which is best illustratedin Figs. 4 and 7 ot the drawings, and by reference to thetignres itIwill he seen that I provide the power-shaft Ewith an upon opposite sidesei the eross-bolt D2 and i rails in either direction, and it maybepoiiitotner ,toists in which the lt is ln connection with the machineinst de' ver-arm a shorter or longer throw or nieve nient oi thelower-ends ot the lever-arni may lt will et course be understood nilarhe had when the oscillating arni moved by the eccentric. The operationof this ieature of in); invention is as follows; Assuming the machinehas been set in position and the slidingr traine is to be i'iioved inthe direction indicated by the arrow l in Fig. i of the drawings, theoperator grasps 'the handle Ff ol' the drive-sprocket `with onel handand with the other catches hold of the rail (l adjacent the handle-barand withliis tluniih presses .downwardly and forwardly upon tlsthun'ib-piece iiiarlied m, which. rocks the lower arm and throws theclut'clvslioe (marked l) into engagement with the rail,

'Then by revolving; the drive-sprocket l*1 the in the direetionindicated'by arrow shalt will he revolved in the direction indicated by the arrow12, causing the eccentric to inove the upper end of the oscillating arinforwardly in the direction indicated by ar row 3, and this movementconsequently ni'oves the lever-'arm and bralte-shoes over Lt. Non' whenthe eccentric portion ot the disk eiigages the opposite side oftheforked member ofthe oscillating arm its tendency would be to vmove theupper end of the oscillating arin and lever-arm in the oppositedirection to Athat shown bv the arrow 8; but as the shoe Z isheldtightly against the rail the arm is held against backwardmovement,and, eonsequently, the frame 1s moved forwardly a the pivotalbolt lf', which IIO - tion, enti e euttingj-tooi Second-mentioned shsitend adopted for adjustment @om ed out that the eooeiitfio operates thefeed, g keine, means for irrespective ofthe direction in. which theether, 'e shaft jourshett is being revolved, es the 0;.-1at-iou of sonder: iiaoned .trame und. the feed is Gootioiied entirely througi'ipres- 'having a out .oo opor.) one enti end 9, sureuponeitherthumbpioces of the hanche. sprooetevi I troon the (.ipgfositeen and e hei/e only described the operation of the feed propei thenie-shine in. one direction, asindiceted by the arrow l; but it Wili ofcourse he understood 'that shouid the thumb-- piece et the opposite endof the handle he depressed other chitch'shoe wii he forced. intoengagement with the rail and the meohine moved in the oppositedirection.

From. the foregoing it Wii oe seen that .i .provide am exceedinglyeicient device' which may not only he used Yfor izteiiitating thecutting of joists after they have. set in im building, hut may heiii-sed to advantage for Various other Work, such es shoowork or thecutting of iooriiig when laid in e )uiiding, and, in tact, for mostimg." use to which sew is mit.

e" ventiori,

Having teeure 'oy what eiaim iJetters Patent, is-

3.. e machine of ti L i @emboli-.ion with fi hase, ofrenie shciitblymounteol tl'iereim, e, imm carried. by the irst-mentioiied treme sind.:i ,al .d vFor id^ justmezit u, on. either sfle the ti .first--mentioned treme, e. cutting-tool carried by the second-mentioned fra-me.

2. I n a machine of the kind described, the g combination with a hase,of a. jreine siihih'iy mounted thereon, i treme pii rtely oohw nested tothe sliding; frame and erupted 'io be swung from one side of; thesliding frame to the other, means 'for holding the swinging frame ui itsadlusied osition. to the shthn J I. n frame, and a. cutting-tool came-Gby the swinging 'fram-e.

a mechile of the kind described, the combieetior; with e bese, of frameshoehiv .mounted thereon, e shaft jourioeied in the d the shaft ano.adapted to be L mv trom one of the siifiiig :$1 to 1. means @ein riad hyshdg 1n@time holding the swogiug in position, omi out-tingtool carriedby the swingilig frame.

4. A machine of the sind, described, eomfreine, a second, fro-meio'funeod. upon .prising' e '.imee, e, frame sidehy mounted thereon, asecond frame pivotslly Connected to the first-mentioned framel andedefot-ed for adjustment upon either mentioned frame, means for holdingthe seeond-mentioeed .treme iii its adjusted pesioerrieii by the lsueoh,drive-si) :eme :tud herauf; e noon end, u i..

umsed in heel mounten .une miranda-.il upon the oirle of the rirst- 'nelsiideh .mounted .l

sproeetchoir aroundthe seid sprocket-wh A machine' of the hinddescribed, comprising a, hase consisting 0E hrookets end reis adjustehiyconnected to 'thehrackets, a. friture siidnhy mounted. upon. the rails,a second trame yivoteily connected to the irstmieutioned treme andedepted to swing from one side of the .i'1'st-zieitiior1ed frame to theother, Ineens for iooking the seidv trames together, and t euttizigtooiCarried .hy the Second-mentionod fre-m9.

A. mito-hine of the kind desgriheti, oomprising a. has consistingoibrac-kets and 'is efijustahly connected to the brackets, e tubularSeeve portions through pass and by which the frame sifiehgy r'wteinefithereon, e shaft jouri immo, a, soorsiii frame jourrmied e shaftjourmied in the Serf frame, si :i ...t Wheel journaled 'he said shaftsmit heffing e. n (pzne'retiligf thi-xeon, und

upon eeoh or sprocket oh carried by the first-inentiz., me and mii,vieri to? eiwragement with the second-mer:tioiieiiframe, suhstamtiolijy es Specih'oii.

S. worhiue'of the kim descrii'io i, Compri Y of tfsheie brackets l heid.in the brackets, e huer sieeves through whei. frle -s diive-shzi"tjournaled in the frame, mui .oie :ting ai h end he- Voila the frame, seishaft having e drivesproetet 'ir/hed. upon one enr?, a second trame jouisied u on me extended omis of the shalt, s, niiet jourmied in thesecond-inentioneri fri-.me heaving a. outtingt-oa.wl upon one e! i oudrive-sprocket uien the opposite end, 'e s octieboheiii passing aroundthe seid sproonetw reels, and means fono-ion the seooeriirienrionedherne Q mention@ {Tsi-ame.

9. mhine of the hind deserihr-ci, oomprising o 'bese coosstiog of endbrackets :md

ged reis djustahy heid to the brackets, .a frame stride-hiv retainedupon. the rails, saif frame comprising side portions, and a 'connectingrod or holt, e shsrft jour need .in the treme, e frame jourxuiediiponthe shott, setti eeeonientioried rameoom- @hhs .i

:hetietrirrenged upoi the shorts "o opere l fied hi" the IIC ` with thesaid parallelrll of the side portions, a swinging frame conl sisting ofparallel side arms, one end of each of which is provided with sleevesthrough which ythe said shaft passes, and their opposite endsterminating in bearing-sleeves, a shaft adjustably held in the sleevesfor the purpose specified, a cutting-disk carried by `the shaft,parallel fingers projecting-from each side of each arm, clamping-boltscarried bythe sliding frame and adapted for engagement with the fingersfor the purpose specified, and sprocket wheelsA carried the shafts andhaving a sprocket-chainoperating thereon.

11. A machine of the kind described, comprising a base consisting of endbrackets and parallel-arranged rails secured in thebrackets, apower-shaft journaled in the frame, a

frame journaled upon the-shaft and adapted to be swung from one side ofthe ,slidingQ frame to the other, means carried by the sliding-frame forholding the swinging frame in position, a shaft journaled `in theswingingframe, a cutting tool carried by the lastmentioned shaft,sprocket-wheels mounted upon the shafts and having a chain operatingthereon, a feeding ing frame and adapted for 'engagement with the basewhen thrown into op erativeposition, means for controlling the positionof the feeding device, and means for operating the feeding device.

l2'. A machine of the kind described, comprising a base consisting-ofend brackets and parallelarranged rails connected to the, brackets, aframe slidably retained upon the rails, a power-shaft journaled in theframe, 'a swinging frame journaled upon the powerdevice carried by theslidl shaft, and adapted for vertical adjustment, means for holding theswinging frame in its adjusted position, a shaft V4journaled in theswinging frame, and having a cutting-tool opposite end, a sprocket-wheelmounted upon the power-shaft, asprocket-chain operating upon the wheels,an oscillating arinvpivl otally connected'to the sliding frame, one iend of which terminates in a forked member. i an eccentric-disk carriedby the power-shaft l and operating in the forked end of the arm, l alever-arm .pivoted to the oscillating arm, i clutch-shoes carried by thelever-arm,- said clutch-shoes being adapted for engagement with one ofthe rails of the base, and means upon one end and sprocket-wheel uponits for throwing either one of the shoes into such,

engagement.`

i 13. A machine of the kind described, coinprising base consisting ofend brackets and parallel-arranged rails, a frame slidabl \Y retainedupon the rails, a power-shaft journaled .upon the shaft frame havingparallel-arranged fingers projecting therefrom which are designed forengagement by clamping-bolts carried by thesliding' frame, a shaftjournaled in the secondmentioned frame and having a cutting-tool uponone end and a sprocket-wheel upon its opposite end, a sprocket-chainoperating upon the sprocket-wheels, an oscillating arm pivotalljy'connected at one end to the sliding frame, the'fiee end of theoscillating armv beandhaving a sprocket,-` wheel, a frame Journaled uponthe shaft, saidv ing adapted for engagement byan eccentricdisk carriedby the :power-shaft, an inverted- Y-shaped lever-arm pivotally connectedto the oscillating arm, clutchshoes 'pivotal'ly connected to the lowerends ofthe lever-arm and held immediatelyadj acent one of the railsALBERT LAUB'E R.

Witnesses M. D. BLoNuiaL, E. M. YENN.

of the base, and an operating'handle-bar conas specified. v

